Zanussi ULTRA COMBI 35 Installation And Servicing page 54

71 FAULT FINDING CHART MAIN MENU
ALTERNATING 'L' and '1'
ALTERNATING 'L' and '2'
ALTERNATING 'L' and '5'
ALTERNATING 'L' and '6'
ALTERNATING 'F' and '1'
ALTERNATING 'F' and '2'
ALTERNATING 'F' and '3'
ALTERNATING 'F' and '4'
ALTERNATING 'F' and '5'
ALTERNATING 'F' and '6'
ALTERNATING 'F' and '7'
ALTERNATING 'F' and '9'
ALTERNATING 'c' and '2'
ALTERNATING 'c' and '0'
NO CH BUT HW OK
NO HW BUT CH OK
NO DISPLAY
Note that production boiler PCBs are factory pre-set to operate for boiler range and output, but when ordering Primary PCB as a
spare, an additional Boiler Chip Card (BCC) MUST also be purchased for your specific boiler range and output.
**If PCB replaced as a spare ensure that the BCC (boiler chip card - small plastic part) is fitted to the PCB otherwise replace PCB.
RESET PROCEDURE - To restart boiler, turn mode knob to restart position and immediately turn knob back to required setting.
54
FAULT FINDING
FLOW TEMPERATURE OVERHEAT LOCKOUT
CONTACT ELECTRICITY PROVIDER
GO TO FRAME 72 -
GO TO FRAME 73 -
IGNITION LOCKOUT
5 RESETS WITHIN 15 MINS -
TURN POWER OFF AND ON
GO TO FRAME 74 -
FALSE FLAME LOCKOUT
GO TO FRAME 75 -
LOW WATER PRESSURE
GO TO FRAME 76 -
FLAME LOSS
GO TO FRAME 77 -
FAN FAULT
GO TO FRAME 78 -
THERMISTOR FAULT
GO TO FRAME 79 -
RETURN THERMISTOR FAULT
GO TO FRAME 80 -
OUTSIDE SENSOR FAULT
LOW MAINS VOLTAGE -
PCB FAULT -
**REPLACE PCB
GO TO FRAME 81 -
BCC FAULT (BOILER CHIP CARD)
Restart BOILER
GO TO FRAME 82
GO TO FRAME 83
GO TO FRAME 84
Installation and Servicing